Lock for -damper regulators



Feb. 9 1926.

1,571,990 J. ALSFASSER LOOK FOR DAMPER REGULATORS Filed Sept 12. 1923 Patented Feb. 1926.

thereto.

Fig. 2 is a top plan view of the structure UNITED STATES PATENT OFFICE.

JOSEPH ALSFASSER, O13 CHICAGO ILLINOIS.

LOCK FOR DAMPER REGULATDRS.

Application filed September i2, 1922.. seri l No. 662,192.

To all whom it may concern: I 7

lie it known that I, Josnrrr Ansrnssnn, a citizen of the United States, residing at Chicago in the county of Cook and State of Illinois, have invented certain new and useful lmproven'lents in Locks for Damper Regulators, of which the following is a specification. V

My invention relates to damper controls for ventilating and heating ducts and the like, and particularly to brackets capable of association with the damper regulators for such ducts, which bracket cooperates with,

damper operating lever to hold the damper in any of its various positions.

The invention has among its various objects the provision of a structure which may be readily formed of a blank of relatively thin material and thus provide means whereby it may be secured in position relatively to the duct, receive the lever of the damper and in addition be provided with means whereby said lever of the damper may be engaged and relatively held in any of its various adjusted positions yet will produce a strong structure which cannot readily be bent out of shape or be otherwise injured and rendered useless.

It is a further object to construct the bracket so that it may be co-operatively associated with said lever of the damper and compensate for various distances between said part and the duct in which the damper is arranged i The invention will be explained in detail and more readily understood when read in conjunction with the accompanying draw ings which illustrate one form of which the invention is susceptible, it being obvious that changes and modifications may be resorted to without departing from the spirit of the appended claim forming a part hereof.

In the drawings, Fig. 1 is a sideelevationalview of a duct havin g the invention applied shown in Fig. 1.

Fig. 3 is an enlarged perspective view of the bracket shown in Figs. 1 and 2, and

Fig. 4; is a top plan view of the bracket showing the manner in which the nut is secured against rotation.

The structure illustratedin the drawings for accomplishing the desired result is generally designated as 10, and is illustrated as associated with a duct 11 having the damper 12 arranged for adjustment therein. This thereby adjustably hold it and the damper in any of its various positions. In many instances the segmental extension which provides the means with which the bracket co-operates to hold the damper in its various positions is arranged at relatively different distances from the side wall of the duct, the bracket illustrated in the drawings being constructed to compensate for these variations.

The bracket 10 is formed of a suitably shaped blank of metallic sheet material formed and bent to produce the parallel separated side walls 16-16, which are connected together by the'end wall 17. The side walls 1616 terminate in the laterally projecting walls 1818 which extend at right angles to the walls 16-16 and each of said projecting portions are provided with an aperture 19 through which a rivet or bolt may be passed to thereby secure the bracket with relation to the duct. It is evident from the foregoing explanation of the structure of the bracket that a strong and durable structure is provided which cannot readily be bent out'of shape or be otherwise rendered useless after being applied to the duct. The parallel separated side walls 1616 are each provided with an aperture such as 20. one of which is in alignment with the other and are provided to receive the extension 15 of the damper lever 14. These apertures 20-20 are of a sufiicient dimension to allow the bracket to be associated with the extension 15 or other similar member even though the distance between said extension and the side wall of the duct varyyyetwill co-operate to hold the extension relatively to the bracket when caused .to do so by the thumb clamping screw 21, which is designed to engage the extension and cause it to be held. vThis clamping screw is passed through an aperture 22 provided in the connecting wall 17, the screw being loosely arranged in the aperture and being in threaded engagement with the 1nmrmH ihliki; "w"? :mnmbmr 01? nut '33 which 1% arranged Ymm'mm'l L510 gnu-mile srapm'zdied side Walk; Hiill; and limld ug'aauinst rid-Minn iiwwhy. The duuni) sm'mv TI. and Um nut- B E pi'nm'idu the 1110:1115 I'm: rMvar-zubly 110din u' Hm extension and the dmnpm: in im mx'imm adjusted pnsitimm, as it is evident, that the nmnipuhdions 0F the thumb screw will (Wag ng- "0 m ndcusv Hm extension and i'hol'vby pelil'nii; 1:110. mdmsiun and. its assuviul' sd parka to be adjusted. :md held in its; \m'imw udiust' d prmitiunz-m v m and da aten' is:

1-K bmcmz-f; hP'Vjr: :1 body y'wnfion 00mming 01 parallel Sewn-Mud cmmwied walls, H10 ends 0.? both walls terminating in apex; hn'ed lateral walls adapted to rvcoive means \w'lml'uhy it hwy he swam-3d in position, said pmzdfui walla; Ming provided with aligned ngmrlmw: in which {I} lever secured to a dm'pm um ope am, there being anapermu: 'm said body purtiinu, the axis thereof Ming mun-m: to Sftid first mentioned zr pui'm'ma :1 1nd confined l'minmen and 0011- :u-tu;; wiih The pummel walls of said body pmtimp and :1 smwzw arranged in said last 'nmmiimwl aperture and being in threaded mm: svwnwnt; with he nut; confined between mid \m'lhu mid Fm'nw which is arranged in mid :a-pmf'illt yjym'i jiilxg 1119:1115 :ifofawopm 11 111;? with 111% memlim' i Ul'Qd to ilm daily m 1.6 1101'! mid llw'mbm" m adjusted positio ll.

Tn l0. Mammy wheren'i I haw slgned my mum to Hus sneuificatmn on This 7th day u'l? Fmgtundmr, A. D. 1923.

J OS L'I PH .KUQS FASSER. 

